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segfault in courier pop3login after microupdates

Discussion in 'Plesk 10.x for Linux Issues, Fixes, How-To' started by Hostasaurus.Com, Oct 9, 2012.

  1. Hostasaurus.Com

    Hostasaurus.Com Regular Pleskian

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    The automated microupdates appear to have replaced the pop3login file yesterday and since that time the server's been logging thousands of these:

    pop3login[10300]: segfault at 0 ip 00007f83b827d59f sp 00007fff6a65cbd8 error 4 in libc-2.12.so[7f83b814b000+189000]
    pop3login[11855]: segfault at 0 ip 00007fa9abce859f sp 00007fff6bbd0a08 error 4 in libc-2.12.so[7fa9abbb6000+189000]
    pop3login[13411]: segfault at 0 ip 00007fa10245359f sp 00007fff0d3f81b8 error 4 in libc-2.12.so[7fa102321000+189000]
    pop3login[21237]: segfault at 0 ip 00007f585d6ff59f sp 00007ffffbab15e8 error 4 in libc-2.12.so[7f585d5cd000+189000]
    pop3login[22896]: segfault at 0 ip 00007f64cbd8759f sp 00007fff37c54e48 error 4 in libc-2.12.so[7f64cbc55000+189000]
    pop3login[24515]: segfault at 0 ip 00007f743e79159f sp 00007fff396ad188 error 4 in libc-2.12.so[7f743e65f000+189000]
    pop3login[26539]: segfault at 0 ip 00007f6dfeea759f sp 00007fff8737ebb8 error 4 in libc-2.12.so[7f6dfed75000+189000]


    This is a CentOS 6 x86_64 server with Plesk 10.4.4.
     
  2. IgorG

    IgorG Forums Analyst Staff Member

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    We have not released any updates for 10.4.4 yesterday and there wasn't any updates for pop3login. Last time pop3login has been updated in MU#5 2 Dec 2011
     
    Last edited: Oct 9, 2012
  3. IgorG

    IgorG Forums Analyst Staff Member

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    What is version of libc, glibc?
     
  4. Hostasaurus.Com

    Hostasaurus.Com Regular Pleskian

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    glibc-2.12-1.80.el6_3.5
    libc-client-2007e-11.el6
     
  5. IgorG

    IgorG Forums Analyst Staff Member

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    You can send PM with login credentials for this server to me. We will check it.
     
  6. jreoyo

    jreoyo New Pleskian

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    We've the same problem. Can u detail a solution?
     
  7. Flamenetworks

    Flamenetworks Basic Pleskian

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    Hi,

    we've the same problem too.

    Plesk release: 10.4.4
    Patch version: 47
    OS: Debian 6.0.6
    Arch: x86_64
    libc6: 2.11.3-4
    libc6-dev: 2.11.3-4
    libc6-i386: 2.11.3-4

    Errors:

    pop3login[6967]: segfault at 0 ip 00007f080bd8b052 sp 00007fffa0206bc8 error 4 in libc-2.11.3.so[7f080bc83000+159000]
    pop3login[6970]: segfault at 0 ip 00007f2bd6e9b052 sp 00007fffd53bf5f8 error 4 in libc-2.11.3.so[7f2bd6d93000+159000]
    pop3login[7228]: segfault at 0 ip 00007fce5e71a052 sp 00007fffa82f9458 error 4 in libc-2.11.3.so[7fce5e612000+159000]
    pop3login[7229]: segfault at 0 ip 00007fbd20a3b052 sp 00007fffef180c68 error 4 in libc-2.11.3.so[7fbd20933000+159000]

    Regards,

    F.
     
  8. IgorG

    IgorG Forums Analyst Staff Member

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  9. Flamenetworks

    Flamenetworks Basic Pleskian

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    PRODUCT, VERSION, MICROUPDATE, OPERATING SYSTEM, ARCHITECTURE

    Parallels Plesk, 10.4.4, 47, Debian Squeeze 6.0.6, x86_64

    PROBLEM DESCRIPTION

    pop3login[27873]: segfault at 0 ip 00007f162a2cf052 sp 00007fff31d0e888 error 4 in libc-2.11.3.so[7f162a1c7000+159000]
    pop3login[28128]: segfault at 0 ip 00007fc951cc5052 sp 00007fffa1a17bd8 error 4 in libc-2.11.3.so[7fc951bbd000+159000]
    pop3login[28131]: segfault at 0 ip 00007f4b2c46e052 sp 00007fff9464dee8 error 4 in libc-2.11.3.so[7f4b2c366000+159000]

    STEPS TO REPRODUCE

    N/A

    ACTUAL RESULT

    Cannot login to Mail Server

    EXPECTED RESULT

    Mailbox access to work correctly without crashes

    ANY ADDITIONAL INFORMATION

    Installed libraries: libc6: 2.11.3-4 - libc6-dev: 2.11.3-4 - libc6-i386: 2.11.3-4
     
  10. IgorG

    IgorG Forums Analyst Staff Member

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    Thanks. I have forwarded it to developers. Let's wait their answer.
     
  11. Flamenetworks

    Flamenetworks Basic Pleskian

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    Hi IgorG,

    any updates from developers team?

    Thanks,
     
  12. IgorG

    IgorG Forums Analyst Staff Member

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    No. They are working on it.
     
  13. IgorG

    IgorG Forums Analyst Staff Member

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    It's a very old bug. At least since Plesk 9.5.4.
    Segfaults appears in the log when someone trying to login using different passwords. It may indicate about attempts to guess password for mail user. Bug reported. Affects nothing as far as I see.

    WORKAROUND:
    Close pop3/pop3s ports to force to use IMAP instead.
     
  14. Hostasaurus.Com

    Hostasaurus.Com Regular Pleskian

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    So the solution to your software crashing is to use something else?
     
  15. IgorG

    IgorG Forums Analyst Staff Member

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    If you try to google this problem you see that it is not only Plesk issue. So we assume that it is bug from courier imap side. Our developers will investigate it more deeply and if it is really our bug - it will be fixed.
     
  16. Flamenetworks

    Flamenetworks Basic Pleskian

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    Hi IgorG,

    thanks for the updates.

    How to close pop3/pop3s ports to force to use IMAP instead?
     
  17. Flamenetworks

    Flamenetworks Basic Pleskian

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    Hi IgorG,

    would you please give a reply?

    Thanks!
     
  18. IgorG

    IgorG Forums Analyst Staff Member

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    With corresponding iptables rules, for example
     
  19. Flamenetworks

    Flamenetworks Basic Pleskian

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    With this "solution" we've to make more than 3000 customers change e-mail clients setup. I don't think it's a good idea.
     
  20. Flamenetworks

    Flamenetworks Basic Pleskian

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    Is there any other suggestion about that?

    Thanks,

    F.
     
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